Data methodology

Where every number comes from.

GIO4X does not have a licensed live market-data feed connected to this website, so nothing here is labelled live. Every figure belongs to one of five states, and each state says what it is and what it is not.

01
Reference
Reference data
What it covers
Exchange rates for USD, EUR, GBP, JPY, CHF, AUD, CAD, NZD: the euro foreign exchange reference rates set by the European Central Bank.
Source
European Central Bank reference rates, retrieved through the open Frankfurter API.
When it changes
Once per working day, around 16:00 CET. GIO4X’s server asks for them at most once an hour and shows the date of the fixing beside every figure.
What it is not
Not live prices, not tradable quotes and not GIO4X prices. A reference rate is one published value per day.
02
Indicative
Indicative
What it covers
Spreads, margin levels, minimum sizes and similar trading conditions.
Source
GIO4X’s own published trading conditions, carried over from its previous websites where the two agreed.
When it changes
Changed only when GIO4X changes the published condition. They do not move with the market.
What it is not
Indicative trading conditions published by GIO4X. Not a live quote; actual spreads and requirements vary with market conditions and account type.
03
Schedule
Schedule
What it covers
Which financial centres and trading sessions are open, and how long until the next one.
Source
Computed from your device clock and each venue’s regular weekday timetable. Public holidays and early closes are not reflected.
When it changes
Recalculated in your browser as your clock advances.
What it is not
Not a statement from any exchange that it is open. Public holidays and early closes are not modelled.
04
Simulation
Simulation
What it covers
Everything the calculators and visualisers produce: position size, margin, pip value, cost, drawdown.
Source
Arithmetic on the figures you enter, using the formula shown beside each tool.
When it changes
Instant, in your browser. Your inputs are not sent to GIO4X.
What it is not
Educational information, not investment advice or a recommendation to trade.
05
Third-party charts and panels
Third party
What it covers
Interactive price charts on the instrument pages, and on the market pages and the Morning Room an economic calendar, heat maps, cross rates, quote tables, a market overview and a ticker tape.
Source
Embedded frames from TradingView. Each one is loaded only when you ask for it, or as it scrolls into view if you have switched that on in your preferences. The data, its timing and its accuracy are TradingView’s. No TradingView script runs on GIO4X’s pages, and no panel showing ratings or trade ideas is used.
When it changes
As TradingView supplies it. Depending on the instrument and exchange it may be delayed.
What it is not
Not GIO4X prices, not the prices at which a GIO4X order would be filled, and not a GIO4X calendar or forecast.

For the first four states, the label in the row is the one printed beside the data wherever it appears on the site, together with its source and date. Third-party charts and panels carry the label “Third party” and TradingView’s own attribution.

When data is missing

What “unavailable” means

If the reference rates cannot be retrieved, the module that uses them shows Data unavailable and nothing else. It does not show zeros, it does not show a placeholder, and it does not show an older value as if it were today’s.

The same applies to a calculation that lacks enough history to be meaningful, such as a correlation over too few fixings. The cell is marked unavailable; no number is estimated to fill it.

A sixth label, “Delayed”, is reserved for a delayed market-data feed should one be connected. See also the status page.

Calculations

How changes, strength and correlations are worked out

All four are descriptive statistics of reference fixings that have already been published. None is a signal and none is a forecast.

Cross rates

BASE/QUOTE = (QUOTE per EUR) ÷ (BASE per EUR)

The ECB publishes each currency against the euro. A pair that does not include the euro is derived by dividing one euro rate by the other, on the same fixing date.

Change

change % = (rate today ÷ rate n fixings ago − 1) × 100

Periods are counted in fixings, not calendar days: 1, 5, 21, 63 fixings, which correspond roughly to a day, a week, a month and three months. A change over one fixing compares the latest published value with the one before it.

Currency strength

strength(C) = mean of change %(C/X) over the other seven currencies X

For each currency, the average of its percentage change against each of the other seven over the chosen period. It ranks what has already happened in reference rates.

Correlation

r = Σ(a − ā)(b − b̄) ÷ √( Σ(a − ā)² · Σ(b − b̄)² ), a, b = ln(Pₜ ÷ Pₜ₋₁)

The Pearson correlation of the two pairs’ daily log returns over the available window of about three months of fixings. It needs at least twelve fixings; with fewer, or if either series does not move, the result is shown as unavailable. Correlations change, and a past value says nothing certain about the next period.

Time

Time zones

Your clock

--:--

Reading your clock…

UTC

--:--

Coordinated Universal Time

Your device clock, converted to each centre’s own zone. Daylight is drawn from the sun’s position at the same instant. Regular weekday timetables. Holidays are not reflected.

Fixing dates are the ECB’s.
A reference rate carries the date on which the European Central Bank set it, around 16:00 Central European Time. It is shown as a date, never as a time of day in your zone.
Sessions are computed in each venue’s own zone.
Opening and closing times are held in the local time of each financial centre and converted with your browser’s time-zone database, so daylight-saving changes in either place are handled on the correct dates.
They are shown in the zone you choose.
By default that is your device’s zone. You can set another in preferences. Dials that span the whole day are marked in UTC.
Your clock is the clock.
Schedules use the time reported by your device. If that clock is wrong, the schedule will be wrong by the same amount.

The rule

Nothing on this site is labelled live.

A live label would be a claim that a figure is the market’s price at this moment. GIO4X has no source of its own that could support that claim, so the word is not used, and no GIO4X figure is animated to look as though it were ticking.

The panels from TradingView are a different thing: they are TradingView’s own frames, they update as TradingView updates them, and each is labelled third party. GIO4X still publishes no prices of its own.

One page shows a price that moves by itself: the Practice desk in Labs. That price is invented in your browser by a seeded random walk, belongs to no instrument, and is marked as a simulation inside the drawing. It is not a quote and not a market.

If a licensed feed is connected in future, this page will name the provider, the delay if any and the instruments covered before the first live figure appears.

Figures about the site itself

Visit counts

What it covers: Daily totals of page views by page, of forms accepted and of site searches. They are read by GIO4X staff and are not shown on this website.
Source: This website’s own counter. No analytics provider and no third-party script is involved.
When it changes: A total goes up by one when a page is viewed, a form is accepted or a search is made. Days are counted in UTC. Totals older than 400 days are deleted.
What it is not: Not a record of any visitor: there is no cookie and no identifier, and one page view cannot be linked to another. Not a count of people, and not complete: visitors who have switched counting off, or whose browser asks not to be tracked, are left out. The Cookie & Storage Notice says exactly what is counted.

Page last changed: 10 October 2026

Continue

Fetching the page

The five data states

Reference

Indicative

Schedule

Simulation

Third-party charts and panels

What “unavailable” means

How changes, strength and correlations are worked out

Time zones

Fixing dates are the ECB’s.

Sessions are computed in each venue’s own zone.

They are shown in the zone you choose.

Your clock is the clock.

Nothing on this site is labelled live.

Visit counts

The five data states

Reference

Indicative

Schedule

Simulation

Third-party charts and panels

What “unavailable” means

How changes, strength and correlations are worked out

Time zones

Fixing dates are the ECB’s.

Sessions are computed in each venue’s own zone.

They are shown in the zone you choose.

Your clock is the clock.

Nothing on this site is labelled live.

Visit counts